Vehicle-tire.



No. 841,505. PATENTED JAN. 15, 1907.

F. M. GBORGI. VEHICLE TIRE.

APPLICATION FILED MAY 25, 1906.

. To all zbhom it may concern:

UNITED "STATES PATENT OFFICE.-

FRIEDRICH M. GEoRei, or CHICAGO, ILLINOIS,

I VEHICLE-TIRE. 4

Specification'of Letters Patent. -Applicatin filed May 25, 1906. SerialNo. 318,641.

Patented Jan. 15, 1907.

Be it known that I, FRIEDRICH M. GEORGI, a citizen of the United States,residing at Chicago, in the county of'Cookand State of ois, haveinvented certain new and useful Improvements in Vehicle-Tires andI dohereby declare the following to bee full,

clear, and exact descri 'tion of the invention,

. such as will enable ot ers skilled in'the art .to which appertains tomake and use the same.

My invention relates toa novel construc- I tio'n n an elastic core fortires, the object being to provide cushioning means to take the lace ofair'in pneumatic tires, so as to ren er the latter serviceable.whetherpunc tured or not; and it'consists. in the features ofconstruction and material employed, hereinafter fully describedandclaimed;

In the accompanying drawings, illustratf ing my invention, Fi e 1 is atransverse section of a tire provided with a core constructedinaccordance with my invention;

Fig. 2 is a fragmentary view in elevation of the core. Fig. 3 is adetail fragmentary view the core.

My said. invention, as previously stated, is

in elevation of one of the strandsdisposed in designed rincipally as alight flexible rela-- tively in estructible core,- intended particularlyfor pneumatic tires to take the place of compressed air, the objectbeing to provide means whereby the tire may be used continuously,whether punctured or not, and from which the 'core'may be removed andtransferred to another. tire when the first tire is worn out. f

My invention consists primarilyin the employment of a material whichisvery elastic twisted fi and which-retainsits elasticity indefinitelyand practically under all condi ions. I have foun wool to be most satisfctory'forthis purpose provided that long very looselyers are emploved.In Fig. 3, at A, I have shown a strand of long loosely-twisted woolsuitable for my purpose.

lhe core B consists of a large number of said strands A, laid in contactwith each other and compressed by means of the cord C,'wound ti htlyaround the total number or body of sai strands A,- spirally'inclose'contact in substantially the same manner that thread is wound upona spool. The said strands A are thus compressed tightly against eachother, and in-thismanner the core of any desired diameter and stiffnessmay be easily produced. The said core is then introduced into a tire I),the latter being preferably constructed so as to be-open diametricallyopposite the tread thereof and there laced together after the core hasbeen introduced in order to stretch said tire tightly over said core. AtE, Fig. 1, I have indicated such lacing; but obviously any other meansfor maintaining said tire stretched over said core may be employed. Acore thus constructed has a great deal of elasticity and will assume itsoriginal shape .after compression almost as readily sjrub-,

her, but has the advantage of being exceed-' ingly light as comparedwith rubber, and therefore aflording an excellent substitute for thelatter in the tire. It Will be obvious thatsaid tire may be punctured ininnumerable placesin travel Without materially af-' fecting its travelinpower. Y

My invention aso has the advantage of being relatively chea alidbyreason of the practical destructibility of the material v employed thesame 'may be used over and '80 over again, thereby making-it veryeconorn ical and desirable.

I claim as my invention 1. A core for'elas'ticvehicle-tires, GOmH'iS-ing a plurality of loosely-twisted stran s of wool surrounded by andcompressed a covering-pf cord wound about said strands.

2. A core for hollow elastic vehicle-tires, comprising a plurality ofthick, loosel twisted strands of wool dis osed practical y 0 parallelwith each other, al of said strandseing compressed within a covering. 3.A core for hollow elastic vehicle-tires, comprising a plurality ofthick, looselytwisted strands of wooldisposed practically 5 parallelwith each other, all ofsaid strands being compresed Within a covering,consisting of cord wound spirally tightly around said strands. I

In testimony whereof I .have signed my name in presence of twosubscribing witnesses.

Witnesses: RUDOLPH WM. Lo'rz, E. F. WILSON.

FRIEDRICH M. GEORGIQ

